*{
    margin: 0;
    padding: 0;
}
.BigBox{
    width:100vw;
    height:92vh;
    background:burlywood;
    position:fixed;
    top:0;
    left:0;
}
.user-header{
    width:100vw;
    height:7vh;
    background:pink;

}
.user-inner{
    width:100vw;
    height:85vh;
    background:white;
    position:fixed;
    top:7vh;
    left:0;
    color:powderblue;
}